Density profiles of two-component Bose-Einstein condensates interacting with a Laguerre-Gaussian Beam

TL;DR

This paper investigates the density structures and vortex phenomena in two-component Bose-Einstein condensates interacting with Laguerre-Gaussian beams, revealing complex interference patterns influenced by inter-component interactions.

Contribution

It introduces a detailed analysis of vortex-antivortex interference in two-component BECs under LG beam interaction, highlighting the effects of intra- and inter-component interactions.

Findings

Observation of vortex-antivortex interference patterns

Dependence of density structures on inter-component interactions

Influence of Raman transitions on vortex dynamics

Abstract

The density profiles of trapped two-component Bose-Einstein condensates (BEC) and its microscopic interaction with Laguerre Gaussian (LG) beam are studied. We consider the $^{87}$Rb BEC in two hyperfine spin components. The wavelength of the LG beam is assumed to be comparable to the atomic de-Broglie wavelength. Competitions between intra- and inter-component interactions produce interesting density structures of the ground state of BEC. We demonstrate vortex-antivortex interference and its dependence on the inter-component interactions and Raman transitions.